Type 'ViewController' does not conform to protocol 'MPMediaPlayback'

I got this error message when trying to develop video player.

/Users/MNurdin/Documents/iOS/SwiftVideoPlayer/SwiftVideoPlayer/ViewController.swift:12:1: Type 'ViewController' does not conform to protocol 'MPMediaPlayback'

My code

import UIKit
import MediaPlayer

class ViewController: UIViewController, MPMediaPlayback { //error message here

    var isPreparedToPlay: Bool = true
    var currentPlaybackRate: Float = 0.0
    var currentPlaybackTime: NSTimeInterval = 0.0

    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.
    }

    func play() {

    }

    func pause() {

    }

    func stop() {

    }

    func prepareToPlay() {

    }

    func beginSeekingBackward() {

    }

    func beginSeekingForward() {

    }

    func endSeeking() {

    }

}

What I'm missing here? Please advice. Thank you.

Source code: http://ift.tt/1eXutLp

Reference: http://ift.tt/1FN2ovh